What is the network bootstrap program used by Cisco NX-OS iPXE?
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The network bootstrap program used by Cisco NX-OS iPXE is called iPXE-POAP (Power-On Auto Provisioning). This program is used to automate the initial configuration of network devices, which can save time and reduce errors in configuration.
When a device is first powered on, it sends a DHCP request to obtain an IP address and other network configuration information. If the DHCP server sends back the iPXE-POAP boot file, the device will boot into iPXE-POAP mode.
In iPXE-POAP mode, the device will look for a POAP script on a TFTP server. The POAP script is a configuration file that tells the device how to configure itself. It can include commands to set the hostname, IP address, VLANs, and other settings.
Once the device has downloaded and executed the POAP script, it will reboot and start up in its newly configured state. This process can be repeated for multiple devices, making it easy to deploy new equipment in the data center.
In summary, the network bootstrap program used by Cisco NX-OS iPXE is iPXE-POAP, which is used for automating the initial configuration of network devices.